Abstract

The pipeline systems are commonly used to transport water,
sewage, oil, natural gas and other materials world over.
These pipelines run over long distances and in some
instances they cross high seismic areas including fault
crossings. Many buried pipelines in India run through high
seismic areas and are exposed to considerable seismic risk.
These pipelines should be designed in such a way that they
remain functional even when they are subjected to high
intensity earthquake shaking. This paper illustrates the
performance of one of the high pressure gas pipeline in the
state of Gujarat, under the fault movement. Analysis shows
that the burial depth of pipeline should be minimized in the
fault zones in order to reduce soil restrain on the pipeline
during fault movement.